/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraEmitter.h
TODO: Event action that spawns other whole Systems? One that calls a BP exposed delegate?
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)() struct FNiagaraEventReceiverProperties
FName
Name
The name of this receiver.
FName
SourceEmitter
The name of the emitter from which the Event Generator is taken.
FName
SourceEventGenerator
The name of the EventGenerator to bind to.